﻿using System;

namespace _06_声明公共类
{
    class Program
    {
        static void Main(string[] args)
        {
            Ant v1 = default(Ant);
            Dragongfly v2 = default(Dragongfly);
            Spider v3 = default(Spider);

            Console.WriteLine($"这是： + {v1}");
            Console.ReadLine();
            //Directory.CreateDirectory("aaa");  //创建一个目录 
        }
        public class Ant { }
        public class Dragongfly { }
        public class Spider { }
    }
}
